content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------
   * TableXYDataset.java
   * -------------------
   * (C) Copyright 2000-2008, by Richard Atkinson and Contributors.
   *
   * Original Author:  Richard Atkinson;
   * Contributor(s):   David Gilbert (for Object Refinery Limited);
   *
   * Changes
   * -------
   * 22-Sep-2003 : Changed to be an interface.  Previous functionality moved to
   *               DefaultTableXYDataset;
   * 16-Feb-2004 : Updated Javadocs (DG);
   *
   */
  
  package org.jfree.data.xy;
  
  
  /**
   * A dataset containing one or more data series containing (x, y) data items,
   * where all series in the dataset share the same set of x-values.  This is a
   * restricted form of the {@link XYDataset} interface (which allows independent
   * x-values between series). This is used primarily by the
   * {@link org.jfree.chart.renderer.xy.StackedXYAreaRenderer}.
   */
  public interface TableXYDataset extends XYDataset {
  
      /**
       * Returns the number of items every series.
       *
       * @return The item count.
       */
      public int getItemCount();
  
  }
  